Intel 317443-001US R is the value of the sense resistor typically 0.002 Ω, Voltage Groups

Intel® 945GME Express Chipset—Theory of Operation

R is the value of the sense resistor (typically 0.002 Ω)

V is the voltage measured across the sense resistor.

It is recommended that the user use an oscilloscope or high precision digital multi- meter tool such as the Agilent* 34401A digital multi-meter. Such a meter has 6½ digits of accuracy and can provide a much greater accuracy in power measurement than a common 3½ digit multimeter.

Table 6 summarizes the voltage rails and power measurement sense resistors located on the Intel® 945GME Express Chipset platform. All sense resistors are 0.002 Ω unless otherwise noted. Please note that many voltage rails do not have sense resistors.

Table 6. Intel® 945GME Express Chipset Development Kit Voltage Rails (Sheet 1 of 3)

Voltage Groups		Voltage Rail	Sense Resistor	Powered during
				System States
0.9V		+V0.9	R4N4	S0,S3
1.05V Switched		+V1.05S	R4V4	S0
1.2V		+V1.2_LAN	R8A2	S0,S3
1.5V	Always	+V1.5A_AZ_IO		S0,S3,S4,S5
		+V1.5A_PWRGD		S0,S3,S4,S5
1.5V	Switched	+V1.5S	R5F4	S0
		+V1.5S_3GPLL	R6D8	S0
		+V1.5S_AUX	R6D6	S0
		+V1.5S_DPLLA		S0
		+V1.5S_DPLLB		S0
		+V1.5S_HPLL		S0
		+V1.5S_MPLL		S0
		+V1.5S_PCIE	R5E2	S0
		+V1.5S_PCIE_ICH		S0
		+V1.5S_QTVDAC and	R5F3	S0
		+V1.5S_TVDAC
1.8V		+V1.8	R5N2	S0,S3
2.5V		+V2.5_LAN	R7M2	S0,S3
		+VLAN_2.5-3.3		S0,S3
2.5V	Switched	+V2.5S		S0
		+V2.5S_CRTDAC		S0
		+V2.5S_PWRGD		S0
3.3V		+V3.3		S0,S3
3.3V	Always	+V3.3A		S0,S3,S4,S5
		+V3.3A/1.5A_AZ_IO		S0,S3,S4,S5
		+V3.3A_MBL		S0,S3,S4,S5
		+V3.3A_RTC		S0,S3,S4,S5
3.3V	Switched	+V3.3S		S0
		+V3.3_PCISLT3	R9B3	S0
		+V3.3S/1.5S_AZ_IO	R8F8	S0
		+V3.3S_DB800_VDDA		S0

Intel® CoreTM 2 Duo processor with the Mobile Intel® 945GME Express Chipset
Manual	May 2007
32	Order Number: 317443-001US